John Wesley on Isaiah 41:25

Raised - Cyrus, might be said to come from the north, because he was a Mede by his mother, as he was a Persian by his father; or because a great part of his army was gathered out of Media, which was northward, in reference to Judea, and because Darius the Mede was joined with him in this expedition. Proclaim - This Cyrus did in express, emphatical terms, Ezra 1:1,2. As on mortar - Treading them down, as easily as a man treads down mortar.